Competitive advantage of bacteriocinogenic strains within lactic acid bacteria consortium of raw milk cheese

The presence of gene determinants for different bacteriocins has been already demonstrated in traditional Slovenian types of raw milk cheeses ‘Tolminc’ and ‘Kraški’. These genes were present also in the cultivable microbiota. In this research the aim was to establish how the presence of gene determi...

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Main Authors: Irena Rogelj, Bojana Bogovič Matijašić, Andreja Čanžek Majhenič, Aljoša Trmčić, Tanja Obermajer
Format: Article
Language:English
Published: Croatian Dairy Union 2011-03-01
Series:Mljekarstvo
Subjects:
Online Access:http://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=97627
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author Irena Rogelj
Bojana Bogovič Matijašić
Andreja Čanžek Majhenič
Aljoša Trmčić
Aljoša Trmčić
Tanja Obermajer
Tanja Obermajer
Andreja Čanžek Majhenič
Bojana Bogovič Matijašić
Irena Rogelj
author_facet Irena Rogelj
Bojana Bogovič Matijašić
Andreja Čanžek Majhenič
Aljoša Trmčić
Aljoša Trmčić
Tanja Obermajer
Tanja Obermajer
Andreja Čanžek Majhenič
Bojana Bogovič Matijašić
Irena Rogelj
author_sort Irena Rogelj
collection DOAJ
description The presence of gene determinants for different bacteriocins has been already demonstrated in traditional Slovenian types of raw milk cheeses ‘Tolminc’ and ‘Kraški’. These genes were present also in the cultivable microbiota. In this research the aim was to establish how the presence of gene determinants for bacteriocins in microbial consortia is reflected in its antimicrobial activity. In addition, one of the goals was to determine whether the strains that carry gene determinants for bacteriocins have any competitive growth advantage in microbial population. Microbial consortium of ‘Tolminc’ cheese was propagated in milk and examined at the end of propagation its antimicrobial activity and the presence of gene determinants for bacteriocins. Comparison of the results obtained before and after propagation leaded to the conclusion that most of the strains possessing gene determinants for bacteriocins were unable to persist during propagation. The strains which did persist during propagation carried gene determinants for enterocins P, L50B and cytolysin. Antimicrobial activity of consortium before and after propagation was not substantially different and cannot be attributed to any of detected bacteriocins.
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spelling doaj.art-2ac1c246d1e646009719dc061174b65f2022-12-22T03:21:29ZengCroatian Dairy UnionMljekarstvo0026-704X1846-40252011-03-016112632Competitive advantage of bacteriocinogenic strains within lactic acid bacteria consortium of raw milk cheeseIrena RogeljBojana Bogovič MatijašićAndreja Čanžek MajheničAljoša TrmčićAljoša TrmčićTanja ObermajerTanja ObermajerAndreja Čanžek MajheničBojana Bogovič MatijašićIrena RogeljThe presence of gene determinants for different bacteriocins has been already demonstrated in traditional Slovenian types of raw milk cheeses ‘Tolminc’ and ‘Kraški’. These genes were present also in the cultivable microbiota. In this research the aim was to establish how the presence of gene determinants for bacteriocins in microbial consortia is reflected in its antimicrobial activity. In addition, one of the goals was to determine whether the strains that carry gene determinants for bacteriocins have any competitive growth advantage in microbial population. Microbial consortium of ‘Tolminc’ cheese was propagated in milk and examined at the end of propagation its antimicrobial activity and the presence of gene determinants for bacteriocins. Comparison of the results obtained before and after propagation leaded to the conclusion that most of the strains possessing gene determinants for bacteriocins were unable to persist during propagation. The strains which did persist during propagation carried gene determinants for enterocins P, L50B and cytolysin. Antimicrobial activity of consortium before and after propagation was not substantially different and cannot be attributed to any of detected bacteriocins.http://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=97627traditional cheesebacteriocin genesbacteriocinsantimicrobial activitycompetition
spellingShingle Irena Rogelj
Bojana Bogovič Matijašić
Andreja Čanžek Majhenič
Aljoša Trmčić
Aljoša Trmčić
Tanja Obermajer
Tanja Obermajer
Andreja Čanžek Majhenič
Bojana Bogovič Matijašić
Irena Rogelj
Competitive advantage of bacteriocinogenic strains within lactic acid bacteria consortium of raw milk cheese
Mljekarstvo
traditional cheese
bacteriocin genes
bacteriocins
antimicrobial activity
competition
title Competitive advantage of bacteriocinogenic strains within lactic acid bacteria consortium of raw milk cheese
title_full Competitive advantage of bacteriocinogenic strains within lactic acid bacteria consortium of raw milk cheese
title_fullStr Competitive advantage of bacteriocinogenic strains within lactic acid bacteria consortium of raw milk cheese
title_full_unstemmed Competitive advantage of bacteriocinogenic strains within lactic acid bacteria consortium of raw milk cheese
title_short Competitive advantage of bacteriocinogenic strains within lactic acid bacteria consortium of raw milk cheese
title_sort competitive advantage of bacteriocinogenic strains within lactic acid bacteria consortium of raw milk cheese
topic traditional cheese
bacteriocin genes
bacteriocins
antimicrobial activity
competition
url http://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=97627
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